Difficult to treat D2T-axSpA (failure > 3 biologics), affects one in five patients exposed to b/tsDMARDs in this national registry. D2T is more common in women, presence of peripheral involvement, psoriasis, depression, Fakih O Abst#0514 #ACR23 @RheumNow https://t.co/OoymZzzQST https://t.co/EpTqS1C61A